Anti-overheating storage battery structure

Abstract

The invention relates to the technical field of storage batteries, in particular to an anti-overheating storage battery structure which comprises a constant-temperature assembly and a battery pack, the battery pack is arranged in a box body, the box body comprises a vertical rod, a transverse rod, a longitudinal rod and a collecting disc, the constant-temperature assembly is communicated with the battery pack through a first water return pipe and a water outlet pipe, and a water pump is arranged on the water outlet pipe; the first water return pipe is communicated with a water return main pipe, and the water inlet main pipe and the water return main pipe are communicated with all battery packs of the box body; the constant-temperature assembly comprises a lower shell and an upper shell, an air bag is arranged in the upper shell, a charging connector communicated with the air bag is arranged on the side edge of the upper shell, and a cooling water inlet and a cooling water outlet of the cooling water pipe are formed in the side face of the lower shell. The lower side of the lower shell is provided with a first water outlet communicated with the water pump and a water return port communicated with the first water return pipe. The battery pack can keep a proper working temperature, and the performance of the battery pack is improved; when the pressure in the sealing cavity is increased, the sealing cavity is sealed, so that the battery pack is prevented from being further damaged due to heat diffusion.

Description

Technical Field

[0001] The present invention relates to the technical field of storage batteries, and specifically to an overheat-proof storage battery structure. Background Art

[0002] People often use batteries in daily life. Especially, the UPS in data centers generally uses a group of storage battery bodies as backup power supplies. The storage battery bodies are usually placed using battery racks or battery cabinets. Usually, the storage battery bodies are placed in multiple layers and two rows on the battery racks or in the battery cabinets.

[0003] The backup power supply of the UPS in data centers usually uses lead-acid batteries. However, when used for a long time, there will be liquid leakage and short circuit, which will generate sparks and cause the batteries to overheat and be scrapped.

[0004] With the development of lithium batteries, lithium batteries have obtained broad development and application due to their high energy density characteristics; lead-acid batteries have gradually been replaced by lithium batteries. However, when lithium batteries are used, due to reasons such as battery aging and non-standard use, there will occasionally be situations where lithium batteries overheat and cause combustion or even explosion, which has certain potential safety hazards.

[0005] The above short circuit and spontaneous combustion will both cause the batteries to overheat. The prior art has not proposed an effective solution to the problem of battery overheating, especially the overheating of the backup power supply of the UPS in data centers.

[0006] Therefore, an overheat-proof storage battery structure is needed to solve the above technical problems. Summary of the Invention

[0007] The purpose of the present invention is to solve the above problems and provide an overheat-proof storage battery structure.

[0008] An overheat-proof storage battery structure includes a constant temperature component and a battery pack. The battery pack is arranged in a box body. The box body includes four vertical rods, and the vertical rods are connected by a plurality of horizontal rods and vertical rods. A collection tray is arranged on the lower sides of adjacent horizontal rods and vertical rods, and multiple groups of battery packs are arranged on the upper sides of adjacent horizontal rods and vertical rods.

[0009] The constant temperature component and the battery pack are connected and communicated through a first return water pipe and a water outlet pipe, and a water pump is arranged on the water outlet pipe.

[0010] The water outlet pipe is connected and communicated with a total water inlet pipe, and the first return water pipe is connected and communicated with a total return water pipe. Both the total water inlet pipe and the total return water pipe are connected and communicated with all the battery packs in the box body.

[0011] The constant temperature component includes a lower shell and an upper shell. An air bag is arranged in the upper shell, and an inflation nozzle communicated with the air bag is arranged on the side of the upper shell.

[0012] The cooling water inlet and the cooling water outlet of the cooling water pipe are arranged on the side surface of the lower shell.

[0013] On the lower side of the lower shell, a first water outlet communicating with the water pump and a water return port communicating with the first water return pipe are provided.

[0014] Furthermore, multiple battery packs are connected in series on the first water return pipe and the water outlet pipe.

[0015] Furthermore, the battery pack includes a housing. The upper end of the housing is bolted to an upper cover, and the lower end of the housing is bolted to a lower cover. A plurality of sealed cavities are evenly distributed in the housing. Each sealed cavity is provided with a battery assembly, and each sealed cavity communicates with a pressure maintaining valve provided outside the housing.

[0016] Furthermore, the battery assembly includes a battery body. At the upper end of the battery body, a battery positive electrode and a battery negative electrode are provided. The battery positive electrode and the battery negative electrode penetrate through the upper cover and are hermetically connected to the upper cover.

[0017] A left deflector is provided on the left side of the battery body, and a right deflector is provided on the right side of the battery body. A partition is provided in the middle of the left deflector. Middle horizontal grooves are provided on both sides above the partition. A plurality of second diversion grooves are provided on the side far away from each other of the two middle horizontal grooves. The second diversion grooves are vertically arranged. First end horizontal grooves are provided on the side far away from each other of the two second diversion grooves.

[0018] The right deflector is provided with a third diversion groove vertically penetrating through. Second end horizontal grooves are respectively provided at the upper and lower ends of the third diversion groove.

[0019] Furthermore, an upper and lower side deflector is respectively provided at the upper and lower ends of the battery body. A plurality of fourth diversion grooves are arranged in parallel on the upper and lower side deflectors. The fourth diversion grooves are perpendicular to the left deflector;

[0020] A front and rear side deflector is respectively provided on the front and rear sides of the battery body. A plurality of first diversion grooves are arranged in parallel in the front and rear side deflectors. The first diversion grooves are perpendicular to the left deflector and parallel to the fourth diversion grooves.

[0021] Furthermore, an upper through hole and a lower through hole are respectively provided in the two middle horizontal grooves. The upper through hole communicates with a second water outlet provided on the side of the sealed cavity, and the lower through hole communicates with a water inlet provided on the side of the sealed cavity. The second water outlet and the water inlet both communicate with the pressure maintaining valve outside the housing.

[0022] Furthermore, the pressure maintaining valve includes a valve body. An inflow pipe and an outflow pipe are arranged in parallel at the upper end of the valve body. The lower end of the inflow pipe communicates with an inflow channel penetrating through the valve body. The lower end of the outflow pipe communicates with an outflow channel penetrating through the valve body. Connecting sleeves are provided at the lower ends of the inflow channel and the outflow channel. The connecting sleeve at the lower end of the inflow channel communicates with the water inlet, and the connecting sleeve at the lower end of the outflow channel communicates with the second water outlet. A temperature sensor is provided in the outflow channel.

[0023] A sphere is provided in the middle of the inflow channel. A first spring abuts between the lower side of the sphere and the connecting sleeve.

[0024] Further, a valve core is horizontally slidably arranged in the middle of the outflow channel. A second spring is arranged at the left end of the valve core. The right end of the valve core communicates with the inflow channel at the upper end of the sphere through a driving channel. The left end of the valve core communicates with the outflow channel below the valve core through a bypass channel.

[0025] Further, annular grooves are arranged on the lower side of the lower cover corresponding to the positions of each sealing cavity, and two straight grooves arranged perpendicular to each other are arranged in the annular grooves.

[0026] Further, the inflow pipe of each pressure maintaining valve is communicated with the water inlet pipe, the outflow pipe of each pressure maintaining valve is communicated with the second return water pipe, the water inlet pipe is communicated with the total water inlet pipe, and the second return water pipe is communicated with the total return water pipe.

[0027] The beneficial effects of the present invention are as follows: by immersing the battery body in dimethyl silicone oil, when the battery body leaks liquid, the leaked liquid can be diluted to prevent short circuit, and the heat can also be taken away to prevent the battery from overheating.

[0028] By arranging the constant temperature assembly, a large amount of heat can be stored and released, so as to keep the temperature of the battery pack constant, prevent the temperature of the battery pack from changing greatly, make the battery pack maintain a suitable working temperature, and improve the performance of the battery pack.

[0029] By arranging the pressure maintaining valve, when the pressure in the sealing cavity increases, the sealing cavity is closed to prevent heat diffusion from causing further damage to the battery pack. At the same time, the constant temperature assembly continuously conveys liquid into the sealing cavity and flows out from the bottom of the sealing cavity to take away the heat in the sealing cavity to prevent further thermal runaway. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention.

[0031] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention;

[0032] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at A in;

[0033] Figure 3 It is a schematic diagram of the structure of the constant temperature assembly of the present invention;

[0034] Figure 4 It is a schematic diagram of the exploded state structure of the constant temperature assembly of the present invention;

[0035] Figure 5 For the present invention Figure 3 Schematic diagram of the structure at B in;

[0036] Figure 6For the present invention Figure 3 Schematic diagram of the structure at position C in the present invention;

[0037] Figure 7 Schematic diagram of the internal structure of the box body of the present invention;

[0038] Figure 8 Schematic diagram of the box body structure of the present invention;

[0039] Figure 9 Schematic diagram of the battery pack structure of the present invention;

[0040] Figure 10 Schematic diagram of the explosion state structure of the battery pack of the present invention;

[0041] Figure 11 Schematic diagram of the explosion state structure of the battery module of the present invention;

[0042] Figure 12 Schematic diagram of the right side deflector structure of the present invention

[0043] Figure 13 Schematic diagram of the bottom cover of the present invention viewed from below;

[0044] Figure 14 For the present invention Figure 13 Schematic diagram of the structure at position D in the present invention;

[0045] Figure 15 Schematic diagram of the pressure maintaining valve structure of the present invention;

[0046] Figure 16 Schematic diagram of the sectional view of the pressure maintaining valve of the present invention.

[0047] Reference numerals:

[0048] 1 Constant temperature assembly, 11 Water pump, 111 First return water pipe, 112 Water outlet pipe, 113 Water return port, 114 First water outlet, 12 Lower shell, 13 Upper shell, 131 Inflation nozzle, 14 Cooling water pipe, 141 Cooling water inlet, 142 Cooling water outlet, 16 Airbag;

[0049] 2 Battery pack, 21 Housing, 211 Sealed cavity, 212 Second water outlet, 213 Water inlet, 22 Upper cover, 23 Lower cover, 231 Ring groove, 232 Straight groove;

[0050] 24 Battery module, 241 Battery positive electrode, 242 Battery negative electrode, 243 Battery body, 244 Front and rear side deflectors, 2441 First diversion groove, 245 Left side deflector, 2451 Partition, 2452 Second diversion groove, 2453 First end transverse groove, 2454 Middle transverse groove, 2455 Upper through hole, 2456 Lower through hole, 246 Right side deflector, 2461 Third diversion groove, 2462 Second end transverse groove, 247 Upper and lower side deflectors, 2471 Fourth diversion groove;

[0051] 25 housing, 251 vertical rod, 252 cross rod, 253 longitudinal rod, 254 collection tray

[0052] 26 main water inlet pipe, 261 main water return pipe

[0053] 3 pressure maintaining valve, 31 second water return pipe, 311 water inlet pipe, 32 valve body, 321 inflow pipe, 322 outflow pipe, 323 inflow channel, 324 outflow channel, 33 sphere, 331 first spring, 34 connecting sleeve, 35 valve core, 351 second spring, 36 bypass channel, 37 driving channel, 38 temperature sensor Specific embodiments

[0054] The present invention will be specifically described below with reference to the accompanying drawings. As Figures 1 - 16 shown, a battery structure for preventing overheating includes a constant temperature component 1 and a battery pack 2. The battery pack 2 is arranged in a housing 25. The housing 25 includes four vertical rods 251, and the vertical rods 251 are connected by a plurality of cross rods 252 and longitudinal rods 253. A collection tray 254 is arranged on the lower sides of adjacent cross rods 252 and longitudinal rods 253, and multiple groups of battery packs 2 are arranged on the upper sides of adjacent cross rods 252 and longitudinal rods 253. The constant temperature component 1 and the battery pack 2 are communicated through a first water return pipe 111 and a water outlet pipe 112. A water pump 11 is arranged on the water outlet pipe 112. The water outlet pipe 112 is communicated with a main water inlet pipe 26, and the first water return pipe 111 is communicated with a main water return pipe 261. Both the main water inlet pipe 26 and the main water return pipe 261 are communicated with all battery packs 2 in the housing 25. Dimethyl silicone oil is arranged in the constant temperature component 1. The dimethyl silicone oil has insulation properties and can prevent the short circuit of the positive and negative electrodes of the battery. The water pump 11 drives the circulation of the dimethyl silicone oil between the constant temperature component 1 and the battery pack 2, and moves the heat in the battery pack 2 into the constant temperature component 1 to realize the cooling of the battery pack 2.

[0055] The constant temperature component 1 includes a lower shell 12 and an upper shell 13. The lower shell 12 and the upper shell 13 are bolted to form a sealed cavity, and the sealed cavity is filled with dimethyl silicone oil. An airbag 16 is arranged in the upper shell 13, and an inflation nozzle 131 communicated with the airbag 16 is arranged on the side of the upper shell 13. A cooling water pipe 14 is communicated with a radiator, and a heating component is arranged on the cooling water pipe 14 for heating and cooling the water in the cooling water pipe 14 to keep the dimethyl silicone oil in the lower shell 12 and the upper shell 13 stable and constant. This is the prior art and will not be elaborated here.

[0056] Refer to Figure 5 and Figure 6 , the cooling water inlet 141 and the cooling water outlet 142 of the cooling water pipe 14 are arranged on the side of the lower shell 12.

[0057] On the lower side of the lower shell 12, a first water outlet 114 communicating with the water pump 11 and a water return port 113 communicating with the first water return pipe 111 are provided. The dimethyl silicone oil in the lower shell 12 and the upper shell 13 enters and exits through the first water outlet 114 and the water return port 113, and flows into and out of the battery pack 2 through the first water return pipe 111 and the water outlet pipe 112, realizing the cooling of the battery pack 2.

[0058] The present invention is provided with a constant temperature component 1. A large amount of heat can be released and absorbed in the constant temperature component 1, which is equivalent to a heat storage device. It can buffer the temperature change of the battery pack 2, keep the temperature of the battery pack 2 stable, and improve the working environment and working efficiency of the battery pack 2.

[0059] See Figure 1 and Figure 7 , multiple battery packs 2 are connected to the first water return pipe 111 and the water outlet pipe 112, and the number of battery packs 2 can be set according to actual needs.

[0060] See Figure 9 and Figure 10 , the battery pack 2 includes a housing 21. The upper end of the housing 21 is bolted to the upper cover 22, and the lower end of the housing 21 is bolted to the lower cover 23. A plurality of sealed cavities 211 are evenly distributed in the housing 21. The upper cover 22 and the lower cover 23 seal the upper and lower ends of the plurality of sealed cavities to form a sealed space. A battery assembly 24 is arranged in each sealed cavity 211, and each sealed cavity 211 communicates with a pressure maintaining valve 3 arranged outside the housing 21. The pressure maintaining valve 3 can control the inflow and outflow of the liquid in the sealed cavity 211, so that the liquid can normally flow in and out of the sealed cavity 211 from the outside, and when the pressure in the sealed cavity 211 increases, the liquid cannot flow out of the pressure maintaining valve 3 from the inside of the sealed cavity 211.

[0061] See Figures 9 - 11 , the battery assembly 24 includes a battery body 243. A battery positive electrode 241 and a battery negative electrode 242 are arranged at the upper end of the battery body 243. The battery positive electrode 241 and the battery negative electrode 242 penetrate through the upper cover 22 and are hermetically connected to the upper cover 22.

[0062] A left deflector 245 is arranged on the left side of the battery body 243, and a right deflector 246 is arranged on the right side of the battery body 243. A partition 2451 is arranged in the middle of the left deflector 245. Middle transverse grooves 2454 are arranged on both sides above the partition 2451. A plurality of second diversion grooves 2452 are arranged on the side of the two middle transverse grooves 2454 away from each other. The second diversion grooves 2452 are arranged vertically. First end transverse grooves 2453 are arranged on the side of the two second diversion grooves 2452 away from each other.

[0063] The right deflector 246 is provided with a vertically penetrating third deflector groove 2461. Second end transverse grooves 2462 are respectively arranged at the upper and lower ends of the third deflector groove 2461, and the second end transverse grooves 2462 are used for connecting between multiple third deflector grooves 2461.

[0064] The partition plate 2451 is used to isolate the upper and lower sides of the battery body 243, realizing two spaces. The liquid circulates in the upper and lower spaces to take away the heat of the battery body 243. The middle transverse groove 2454 and the first end transverse groove 2453 are used to connect multiple vertically arranged second deflector grooves 2452, and the liquid flows through each second deflector groove 2452.

[0065] An upper and lower side deflector 247 is respectively arranged at the upper and lower ends of the battery body 243. Multiple fourth deflector grooves 2471 are arranged in parallel on the upper and lower side deflector 247, and the fourth deflector grooves 2471 are arranged perpendicular to the left deflector 245.

[0066] A front and rear side deflector 244 is respectively arranged on the front and rear sides of the battery body 243. Multiple first deflector grooves 2441 are arranged in parallel in the front and rear side deflector 244. The first deflector grooves 2441 are perpendicular to the left deflector 245 and parallel to the fourth deflector grooves 2471. The first deflector grooves 2441 and the fourth deflector grooves 2471 are used to guide the liquid to flow left and right on the surface of the battery body 243.

[0067] See Figure 10 and Figure 11 Two upper through holes 2455 and lower through holes 2456 are respectively arranged in the two middle transverse grooves 2454. The upper through hole 2455 is communicated with the second water outlet 212 arranged on the side of the sealing cavity 211, and the lower through hole 2456 is communicated with the water inlet 213 arranged on the side of the sealing cavity 211. The second water outlet 212 and the water inlet 213 are both communicated with the pressure maintaining valve 3 outside the housing 21.

[0068] The liquid enters the sealing cavity 211 from the water inlet 213 through the pressure maintaining valve 3 and the lower through hole 2456, flows through the first deflector grooves 2441 and the fourth deflector grooves 2471 on the lower side of the partition plate 2451 in the sealing cavity 211, enters the right deflector 246, then flows through the third deflector groove 2461 to the second end transverse groove 2462 at the upper end, and finally flows through the first deflector grooves 2441 and the fourth deflector grooves 2471 on the upper side of the partition plate 2451 into the first end transverse groove 2453, and then enters the middle transverse groove 2454 through the second deflector groove 2452 and flows out from the upper through hole 2455. The circulation of the coolant is completed.

[0069] See Figure 15 and Figure 16, the pressure-holding valve 3 includes a valve body 32. At the upper end of the valve body 32, an inflow pipe 321 and an outflow pipe 322 are arranged in parallel. The lower end of the inflow pipe 321 is connected and penetrates an inflow channel 323 of the valve body 32, and the lower end of the outflow pipe 322 is connected and penetrates an outflow channel 324 of the valve body 32. Connecting sleeves 34 are arranged at the lower ends of both the inflow channel 323 and the outflow channel 324. The connecting sleeve 34 at the lower end of the inflow channel 323 is communicated with the water inlet 213, and the connecting sleeve 34 at the lower end of the outflow channel 324 is communicated with the second water outlet 212. A temperature sensor 38 is arranged in the outflow channel 324. The inflow channel 323 and the outflow channel 324 are used to guide the cooling liquid to flow into and out of the sealed cavity 211 of the battery pack 2, and the temperature sensor 38 is used to monitor the temperature in each sealed cavity 211 in real time. When the temperature reaches the set value, the system will automatically alarm.

[0070] A sphere 33 is arranged in the middle of the inflow channel 323. A first spring 331 abuts between the lower side of the sphere 33 and the connecting sleeve 34. Through the arrangement of the sphere 33 and the first spring 331, the inflow channel 323 is in a one-way flow state, so that the liquid can only flow into the sealed cavity of the battery pack 2.

[0071] A valve core 35 is arranged to slide horizontally in the middle of the outflow channel 324, and the valve core 35 is used to control the on-off of the outflow channel 324. A second spring 351 is arranged at the left end of the valve core 35. The right end of the valve core 35 is communicated with the inflow channel 3223 at the upper end of the sphere 33 through a driving channel 37, and the left end of the valve core 35 is communicated with the outflow channel 324 below the valve core 35 through a bypass channel 36.

[0072] See Figure 13 and Figure 14 , annular grooves 231 are arranged on the lower side of the lower cover 23 corresponding to the positions of each sealed cavity 211, and two straight grooves 232 arranged perpendicular to each other are arranged in the annular grooves 231. By arranging the sliding grooves 231 and the straight grooves 232, when the pressure in the sealed cavity 211 increases, the lower cover 23 breaks and cracks at the positions of the sliding grooves 231 and the straight grooves 232 to relieve the pressure in the sealed cavity 211.

[0073] Working principle of the pressure-holding valve 3: The valve core 35 is communicated with the sealed cavity 211 through the bypass channel 36, and the right end of the valve core 35 is communicated with the inflow channel 323 through the driving channel 37. Since the pressure in the inflow channel 323 is the same as the pressure in the sealed cavity 211, the pressures at both ends of the valve core 35 are the same at this time. Under the pressure of the second spring 351, the valve core 35 closes the outflow channel 324.

[0074] When the water pump 11 works, the pressure in the driving channel 37 increases. At this time, the pressure at the right end of the valve core 35 drives the valve core 35 to move to the left, and the valve core 35 opens the outflow channel 324. At this time, the liquid can normally enter and exit the sealed cavity 211 through the inflow channel 323 and the outflow channel 324.

[0075] The inlet pipe 321 of each pressure-holding valve 3 is communicated with the water inlet pipe 311, and the outlet pipe 322 of each pressure-holding valve 3 is communicated with the second return water pipe 31. The water inlet pipe 311 is communicated with the total water inlet pipe 26, and the second return water pipe 31 is communicated with the total return water pipe 261.

[0076] Working principle, under normal working conditions: the cooling water pipe 14 controls the dimethyl silicone oil in the constant temperature component 1 to maintain a constant temperature;

[0077] The water pump 11 works, and the dimethyl silicone oil flows into the pressure-holding valve 3 through the water outlet pipe 112 and the water inlet pipe 311, enters the sealing cavity 211 through the inflow channel 323 of the pressure-holding valve 3, circulates around the battery body 243 in the sealing cavity 211, takes away the heat of the battery body 243, and then enters the second return water pipe 31 through the outflow channel 324 of the pressure-holding valve 3, and then enters the total return water pipe 261 and the first return water pipe 111 to enter the constant temperature component 1. The circulating movement of the dimethyl silicone oil is realized to take away the heat.

[0078] By immersing the battery body 243 in the dimethyl silicone oil, when the battery body 243 leaks liquid, the leaked liquid can be diluted to prevent short circuit, and the heat can also be taken away to prevent the battery from overheating.

[0079] When the battery body 243 has a thermal runaway, the pressure in the sealing cavity 211 suddenly increases. The pressure drives the sphere 33 away from the connecting sleeve 34 to close the inflow channel 323. At the same time, the pressure at the lower end of the outflow channel 324 increases, and the pressure is transmitted to the left side of the valve core 35 through the bypass channel 36. The pressure on the left side of the valve core 35 is greater than the pressure on the right side of the valve core 35, pushing the valve core 35 to move to the right, and the valve core 35 closes the outflow channel 324. At this time, the outflow channel 324 and the inflow channel 323 are in a closed state.

[0080] The pressure-holding valve 3 seals the sealing cavity 211 to prevent heat or flame from spreading outward, and also seals and isolates the battery body 243 to reduce its combustion rate.

[0081] When the pressure is very high, the pressure destroys the positions of the straight groove 232 and the annular groove 231 on the lower cover 23. At this time, the pressure is released through the damaged straight groove 232 and annular groove 231. At this time, the pressure in the sealing cavity 211 decreases, and the dimethyl silicone oil also flows out from the damaged straight groove 232 and annular groove 231, taking away the heat and flame. The outflowing dimethyl silicone oil is stored in the collection tray 254 to prevent further damage to the battery body 243.

[0082] Subsequently, the airbag 16 in the constant temperature component 1 expands, squeezing the dimethyl silicone oil to flow towards the straight groove 232 and the sealing cavity 211 with the damaged annular groove 231. Under the pressure of the airbag 16, a large amount of dimethyl silicone oil continuously enters the sealing cavity 211 and flows out from the straight groove 232 and the annular groove 231, thereby taking away the heat and preventing further damage to the battery pack 2 or injury to personnel.

[0083] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An overheat-proof battery structure, comprising a constant temperature component (1) and a battery pack (2), characterized in that: The battery pack (2) is arranged inside the box body (25). The box body (25) includes four vertical rods (251), and the vertical rods (251) are connected by a plurality of cross rods (252) and longitudinal rods (253). A collection tray (254) is arranged on the lower sides of adjacent cross rods (252) and longitudinal rods (253), and multiple groups of battery packs (2) are arranged on the upper sides of adjacent cross rods (252) and longitudinal rods (253); The constant temperature component (1) and the battery pack (2) are communicated through a first return water pipe (111) and a water outlet pipe (112), and a water pump (11) is arranged on the water outlet pipe (112); The water outlet pipe (112) is communicated with the total water inlet pipe (26), the first return water pipe (111) is communicated with the total return water pipe (261), and both the total water inlet pipe (26) and the total return water pipe (261) are communicated with all the battery packs (2) of the box body (25); The constant temperature component (1) includes a lower shell (12) and an upper shell (13). An air bag (16) is arranged inside the upper shell (13), an inflation nozzle (131) communicated with the air bag (16) is arranged on the side of the upper shell (13), and a cooling water pipe (14) is arranged inside the lower shell (12), The cooling water inlet (141) and the cooling water outlet (142) of the cooling water pipe (14) are arranged on the side surface of the lower shell (12); A first water outlet (114) communicated with the water pump (11) and a water return port (113) communicated with the first return water pipe (111) are arranged on the lower side of the lower shell (12).

2. The anti-overheating battery structure according to claim 1, characterized in that: Multiple groups of battery packs (2) are communicated on the first return water pipe (111) and the water outlet pipe (112).

3. The structure of an overheat-proof battery according to claim 2, characterized in that: The battery pack (2) includes a housing (21). The upper end of the housing (21) is bolted to an upper cover (22), the lower end of the housing (21) is bolted to a lower cover (23), a plurality of sealed cavities (211) are evenly distributed inside the housing (21), a battery assembly (24) is arranged in each sealed cavity (211), and each sealed cavity (211) is communicated with a pressure maintaining valve (3) arranged outside the housing (21).

4. The structure of an overheat-proof storage battery according to claim 3, characterized in that: The battery assembly (24) includes a battery body (243). A battery positive electrode (241) and a battery negative electrode (242) are arranged at the upper end of the battery body (243). The battery positive electrode (241) and the battery negative electrode (242) penetrate through the upper cover (22) and are hermetically connected to the upper cover (22); A left flow guide plate (245) is arranged on the left side of the battery body (243), a right flow guide plate (246) is arranged on the right side of the battery body (243). A partition plate (2451) is arranged in the middle of the left flow guide plate (245). Middle transverse grooves (2454) are arranged on both sides above the partition plate (2451). A plurality of second flow guide grooves (2452) are arranged on the sides far away from each other of the two middle transverse grooves (2454). The second flow guide grooves (2452) are arranged vertically. First end transverse grooves (2453) are arranged on the sides far away from each other of the two second flow guide grooves (2452); The right flow guide plate (246) is provided with a vertically penetrating third flow guide groove (2461) thereon, and second end transverse grooves (2462) are arranged at the upper and lower ends of the third flow guide groove (2461).

5. The anti-overheating battery structure according to claim 4, characterized in that: An upper and a lower side flow guide plates (247) are respectively arranged at the upper and lower ends of the battery body (243). A plurality of fourth flow guide grooves (2471) are arranged in parallel on the upper and lower side flow guide plates (247), and the fourth flow guide grooves (2471) are arranged perpendicular to the left side flow guide plate (245). A front and a rear side flow guide plates (244) are respectively arranged on the front and rear sides of the battery body (243). A plurality of first flow guide grooves (2441) are arranged in parallel in the front and rear side flow guide plates (244), and the first flow guide grooves (2441) are perpendicular to the left side flow guide plate (245) and parallel to the fourth flow guide grooves (2471).

6. The structure of an overheat-proof storage battery according to claim 5, characterized in that: An upper through hole (2455) and a lower through hole (2456) are respectively arranged in two middle transverse grooves (2454). The upper through hole (2455) communicates with a second water outlet (212) arranged on the side of the sealing cavity (211), and the lower through hole (2456) communicates with a water inlet (213) arranged on the side of the sealing cavity (211). Both the second water outlet (212) and the water inlet (213) are communicated with a pressure maintaining valve (3) outside the housing (21).

7. The structure of an overheat-proof battery according to claim 6, characterized in that: The pressure maintaining valve (3) includes a valve body (32). An inflow pipe (321) and an outflow pipe (322) are arranged in parallel at the upper end of the valve body (32). The lower end of the inflow pipe (321) communicates with an inflow channel (323) penetrating through the valve body (32). The lower end of the outflow pipe (322) communicates with an outflow channel (324) penetrating through the valve body (32). Connecting sleeves (34) are arranged at the lower ends of both the inflow channel (323) and the outflow channel (324). The connecting sleeve (34) at the lower end of the inflow channel (323) communicates with the water inlet (213), and the connecting sleeve (34) at the lower end of the outflow channel (324) communicates with the second water outlet (212). A temperature sensor (38) is arranged in the outflow channel (324). A sphere (33) is arranged in the middle of the inflow channel (323), and a first spring (331) abuts between the lower side of the sphere (33) and the connecting sleeve (34).

8. The structure of an overheat-proof battery according to claim 7, characterized in that: A valve core (35) is arranged to slide horizontally in the middle of the outflow channel (324). A second spring (351) is arranged at the left end of the valve core (35). The right end of the valve core (35) communicates with an inflow channel (3223) at the upper end of the sphere (33) through a driving channel (37). The left end of the valve core (35) communicates with the outflow channel (324) below the valve core (35) through a bypass channel (36).

9. The structure of an overheat-proof storage battery according to claim 8, characterized in that: Ring grooves (231) are arranged on the lower side of the lower cover (23) corresponding to the positions of each sealing cavity (211), and two straight grooves (232) arranged perpendicular to each other are arranged in the ring grooves (231).

10. The anti-overheating battery structure according to claim 9, characterized in that: The inflow pipe (321) of each pressure maintaining valve (3) communicates with a water inlet pipe (311), and the outflow pipe (322) of each pressure maintaining valve (3) communicates with a second return water pipe (31). The water inlet pipe (311) communicates with a water inlet main pipe (26), and the second return water pipe (31) communicates with a return water main pipe (261).

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